Libro: The Book of Periods & Epochs

This volume and its companion in The Astrology of the World series present the most complete Arabic treatment of how to interpret mundane charts, covering triplicity shifts, continuity between regimes, trust and support between leaders and the people, and rebellion and civil strife. Combined with a 160+ page Introduction by Benjamin Dykes which draws on Mūsā's own historical charts, it opens up new paths for traditional mundane astrologers.

Mūsā b. Nawbakht (900s AD) was a descendant of Nawbakht the Persian (700s AD), who helped elect the founding of Baghdad. Mūsā provides a vivid play-by-play of the turbulent political and military conflicts of his age, sticking closely to the "Persian" theory of the superior planets and the Sun, interpreting how their interplay illustrates whether a government provides safety, suitability, the proper conduct of affairs, and justice to its people.

This volume contains Mūsā's The Book of Periods & Epochs, thorough instructions for Saturn-Jupiter conjunctions in a triplicity shift, the return to the same sign (the "Sixties"), and individual conjunctions (the "Twenties"), along with plenty of advice for Aries and seasonal ingresses.